everyday math grade 4 lesson 5.2 place value in decimals copyright 2011 kelly mott
DESCRIPTION
Copyright © 2010 Kelly Mott Math Boxes Lesson 5.2 Page 117TRANSCRIPT
Everyday MathGrade 4 – Lesson 5.2
Place Value in Decimals
Copyright © 2011 Kelly Mott
Lesson Components:Part 1: Math Boxes 5.2 Page 117Part 2: ReviewPart 3: PowerPoint LessonPart 4: Math Journal Pages 115-116Part 5: Additional Sheets
Copyright © 2011 Kelly Mott
Copyright © 2010 Kelly Mott
Math Boxes Lesson 5.2Page 117
Copyright © 2010 Kelly Mott
Math Box 1:
Copyright © 2010 Kelly Mott
Math Box 2:
Copyright © 2010 Kelly Mott
Math Box 3:
Copyright © 2010 Kelly Mott
Math Box 4:
Copyright © 2010 Kelly Mott
Math Box 5:
REVIEW
Copyright © 2011 Kelly Mott
When multiplying with one zero, try this: 1. Circle the zero 2. Multiply the fact 3. Add the zero in Example:
Multiply with 1 Zero
Copyright © 2011 Kelly Mott
2 x 30 = ___
• Let’s Practice a Few:
Multiply with 1 Zero
Copyright © 2011 Kelly Mott
30 x 3 = 3 x 40 =
2 x 80 = 90 x 5 = 7 x 10 = 80 x 7 = 20 x 5 = 6 x 30 =
When multiplying with two zeros, try this:
1. Circle the zeros 2. Multiply the fact 3. Add the 2 zeros in Example:
Multiply with 1 Zero
Copyright © 2011 Kelly Mott
20 x 30 = ___
• Let’s Practice a Few:
Multiply with 2 Zeros
Copyright © 2011 Kelly Mott
40 x 30 = 20 x 90 =
300 x 2 = 40 x 50 = 90 x 10 = 200 x 7 = 600 x 5 = 8 x 500 =
Copyright © 2011 Kelly Mott
Part 1: Place Value in Decimals
When we write numbers, the position or “place” of each number is important.
Place Value
Copyright © 2011 Kelly Mott
5 in the tenths place 3 in the ones place 7 in the hundredths
place 2 in the tens place
____ ____ . ____ ____
Write the Number 1
Copyright © 2011 Kelly Mott
8 in the tens place 2 in the hundredths
place 9 in the ones place 7 in the tenths place
____ ____ . ____ ____
2 in the tenths place 8 in the ones place 3 in the hundredths
place 1 in the tens place
____ ____ . ____ ____
Write the Number 2
Copyright © 2011 Kelly Mott
3 in the tens place 1 in the hundredths
place 4 in the ones place 6 in the tenths place
____ ____ . ____ ____
Copyright © 2011 Kelly Mott
Part 2: Value of a Number
What is the value of the 6 in the numerals below:
a. 27.60 __________________
b. 62.05 ___________________
Value of a Number 1
Copyright © 2011 Kelly Mott
What is the value of the 6 in the numerals below:
a. 0.361 __________________
b. 2.056 ___________________
What is the value of the 8 in the numerals below:
a. 31.80 __________________
b. 87.15 ___________________
Value of a Number 2
Copyright © 2011 Kelly Mott
What is the value of the 8 in the numerals below:
a. 0.482 __________________
b. 5.018 ___________________
What is the value of the 4 in the numerals below:
a. 98.40 __________________
b. 40.78 ___________________
Value of a Number 3
Copyright © 2011 Kelly Mott
What is the value of the 4 in the numerals below:
a. 0.042 __________________
b. 7.504 ___________________
Copyright © 2011 Kelly Mott
Part 3: Ordering Decimals
• Line up the numbers. Then put them in order. Cross out the numbers as you go.
• Now put them in order from least to greatest:
_________ _________ _________ _________
ORDER: LEAST TO GREATEST 1
H Tens Ones Tenths Hundredths
.
.
.
.
.
Order these numbers:1.62 , 0.85, 1.09, 0.35
Copyright © 2011 Kelly Mott
• Line up the numbers. Then put them in order. Cross out the numbers as you go.
• Now put them in order from least to greatest:
_________ _________ _________ _________
ORDER: LEAST TO GREATEST 2
H Tens Ones Tenths
Hundredth
s
Thousandths
.
.
.
.
.
Order these numbers:1.26 , 1.068, 1.091, 0.35
Copyright © 2011 Kelly Mott
Copyright © 2011 Kelly Mott
Part 4: Make the Smallest Number
Write the smallest number you can make with the following digits:
3 6 5 8 2
___ ___ . ___ ___ ___
Make the Smallest 1
Copyright © 2011 Kelly Mott
Write the smallest number you can make with the following digits:
3 6 5 8 2
Write the smallest number you can make with the following digits:
9 2 1 7 3
___ ___ . ___ ___ ___
Write the smallest number you can make with the following digits:
5 2 8 7 1
___ ___ . ___ ___ ___
Make the Smallest 2
Copyright © 2011 Kelly Mott
Write the smallest number you can make with the following digits:
3 6 5 8 2
Write the smallest number you can make with the following digits:
6 3 2 5 9
___ ___ . ___ ___ ___
Copyright © 2011 Kelly Mott
Part 5: Make the Biggest Number
Write the biggest number you can make with the following digits:
3 6 5 8 2
___ ___ . ___ ___ ___
Make the Biggest 1
Copyright © 2011 Kelly Mott
Write the smallest number you can make with the following digits:
3 6 5 8 2
Write the biggest number you can make with the following digits:
9 2 1 7 3
___ ___ . ___ ___ ___
Write the biggest number you can make with the following digits:
5 2 8 7 1
___ ___ . ___ ___ ___
Make the Biggest 2
Copyright © 2011 Kelly Mott
Write the smallest number you can make with the following digits:
3 6 5 8 2
Write the biggest number you can make with the following digits:
6 3 2 5 9
___ ___ . ___ ___ ___
Copyright © 2011 Kelly Mott
Part 5: Words to Numbers
3 and 27 hundredths
Write the Decimal
Copyright © 2011 Kelly Mott
735 thousandths
1 and 207 thousandths
Write the Decimal
Copyright © 2011 Kelly Mott
6 and 18 thousandths
3 and 2 thousandths
Write the Decimal
Copyright © 2011 Kelly Mott
7 and 8 hundredths
Copyright © 2010 Kelly Mott
Does this make sense?
Copyright © 2010 Kelly Mott
MATH WORKJournal Pages 115-116
Copyright © 2011 Kelly Mott